Justin walzer



(Model.)

2 Sheeius--Sheety 1. J. WALZER.

DOOR SPRING AND LOCK.

Patented Apr. 5, 1887.

2 Sheets-Sheet 2.

-Mmmm (Model.) J. WALZER.

DOOR SPRING AND LOGK.

No. 360,632. Patented Apr. 5, 1.887.

f NH. r.f,///////,///////// UNITED STATES PATENT OFFICE.

JUSTIN VALZER, OF CHAUX-DE-FONDS, SVITZERTIAND.

DOOR SPRING AND LOCK.

SPECIFICATION forming part of Letters Patent No. 360,632, dated April 5, 1887.

Application iilell April 5, 1856. Serial No. 197,792. (Model.) Patented in France November 16, 18S5,`No.157,918.

To all whom it may concern:

Be it known that I, JUSTIN WALZER, of Chaux-de-Fonds, Switzerland, have invented an Improvement in Combined Door Spring and Lock, (for which Letters Patent were granted to me in France, No. 157,918, November 16, 1885,) of which the following is aspecication.

In my improvement the spring acts upon a radius-bar to close the door, said spring being in a barrel within the lock-case, and there is a spring-latch provided with an arm and a notched disk on the springbarrel, the parts being constructed and placed in such a manner that the arm of the spring-latch rests against the periphery of the disk and holds the latch in its retracted position, so that the door can close, or nearly so,without the springlatch having to be pushed back by the nosing, and at this moment the notch of the disk allows the arm of the latch to move so that the latch is projected into the nosing.

By this improvement the slamming of the door is prevented and the latching thereof insured without requiringsuchapowerful spring to close the door against the resistance of the latch.

In the drawings, Figure 1 is an elevation of the parts within the loclecase, the case itself being in section at the line xi, Fig. 2. Fig. 2 is a cross-section at the line y a, Fig. 1. Fig. 3 is an elevation of the lock-case, radiusbar, and part of the door; and Fig. 4 is a plan View of the same parts with the door and its posts in section, and also the turn-buckle in section.

The case A is of suitable size and shape. Within it is a bolt, R, that is projected by the spring S.

U is the spindle, with an arm, U, and link U2 to the shank of the bolt It, for withdrawing such bolt in opening the door; and T T represent the handles upon the spindle U. There may be two handles, or thehandle maybe only on one side.

The movable lock-plate B is provided, as usual, and within the lock is the spring-barrel C on the axis D. At one end of this axis D is a ratchet-wheel, L, and there is a pawl, M, on the lock-plate, by means of which the power of the spring within the barrel may be y adjusted, and the force applied to closethe door thereby regulated.

At one sideof the spring-barrel, or formed therewith, is the disk O', which is notched at C, and there is upon the spindle U an arm, Q, the end of which falls into t-he notch in the spring-barrel at the termination of the Inovement of the spring-barrel, as hereinafter indicated.

The radius-bar H is attached at one end to the pivot-pillarIupon the door-frame, and the end of this radiusbar passes freely into the lock-case, and it is notched for the reception of the loop of wire cord F, the ends of said cord being fastened to the periphery of the spring-barrel C, and, by preference, there is a turn-buckle, 7L, upon the radius-bar H, said radiusbar being in two parts, with right and left hand screw-threads passing into the turnbuckle,so as to adjust the length of the radius bar and cause the notch C of the disk C to occupy the proper position when the door is closed.

It will now be apparent that when the handle T is turned and the latch R withdrawn the arm Q is swung away from the notched disk C and the door can be opened, during which operation the radius-bar H and wire cord F wind up the spring-barrel, and when the door is liberated the spring revolves the barrel, and,acting upon the cord Fand radius-bar H, closes the door. During this time, however,

the latch It is held back in the position shown 'in Fig. 1 by the arm Q upon the edge of the be a short distance back from the outer edge 0f 95 the nosing to allow the end of the bolt to slide upon the nosing during the last portion of the movement oi the door in closing.

I claim as my invention- 1. The combination, with the spring-barrel and radins-bar, and mechanism, substantially as specified, for connecting the same, of the IOO notched disk, the spring-1atch, the spindle, the springdateh is held in aretrztoted position and the arm Q, substantially as set forth. by the arm Q and disk C untll the door` 1s 2. The combination, with the spring-latch, nearly closed7 substantially as set forth. the spindle, and the arm Q, of a Spring-barrel, JUSTIN VALZER. 5 C, cord F, and radius-bar H, notched at the Vitnesses:

end to receive the cord, and the notched disk BUCHEL DATWYLER,

C', acted upon by the spring-barrel, whereby ALFRED KISSLING. 

